21787172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15973}}^1$

素因数の和:16019

約数の個数: 24

約数和(自身を含む): 42938112

約数和(自身を除く): 21150940

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15973, 31946, 63892, 175703, 351406, 495163, 702812, 990326, 1980652, 5446793, 10893586, 21787172]

約数ペア:

[(1, 21787172), (2, 10893586), (4, 5446793), (11, 1980652), (22, 990326), (31, 702812), (44, 495163), (62, 351406), (124, 175703), (341, 63892), (682, 31946), (1364, 15973)]